Gas-furnace.



L. G( RIOMONT,

GAS PURNAGE.

APPLICATION FILED APR. 6, 1905.

4SHEETS4-SEEET 1.

Patented Oct. 13,1908.

e1 V51-mm a @gw W l {fill/77 /l/ /l lll/l En n e1 L. G. PROMONT.

GAS FURNAOR` APPLIOATIONI'ILED APR. 6, 1905.

' Patented 0G13. 13, 1908.

4 SHEETS-SHEET 2.v

L G.' moivmw.

` GAS FURNAGTS. l APPLIoATIoN 'P ILBD APB. e, 19105.

900,845. Patented 00.12.131908.

4 SHEETS-SHEET 3 JIL L. G. FROMONT.

GAS FURNAGE APPLICATION FILED APR..6, 1105.

Patented 0pt. 13,1908.

4 SHEETS-SHIIET 4,

, afk

f which the combustion gases move vertically;

i MONT, subject of the King of Belgium, residnaces; and I do herebydeclare the following vention, such as will enableothers skilled'in Alsoin kilns in which the gases' of combussite vertical directions, whichkilns are al- ,nace, the left hand portion thereof being on the line BR, of Fig. 1 and the right hand UiarrnA salgas N LOUIS GEORGESFROMO-Ndv, 4Ol!" LIEGE, BELGIUM.

i v GAS-Emission. y

i l No. 900,845.

To all-'whom 'Zmcy concern: f

Be it known that I, LOUIS GEORGES FRO- ing at Liege, Bel iurn, haveinvented certain new and useful niprovements in Gas-Furto bea clearand-exact description of the inthe art to which it -use the same.

Gas furnaces and particularly regenerative gas furnaces used in themanufacture of zinc, as heretofore constructed, have been unsatisfactorybecause of the unequal distribution of heat through the various parts.

appertains to make and tion'are caused to travel alternately in oppowaysdivided into two .cl'1a1nbers, serving alternat'ely as` combustion andexhaust chambers, it hasl been necessary vto employ eX- tremely gatteo.'s coal which is expensive and difiicultto dlt-tain in many localities.These defects in furnaces of. thecharacter referred to as commonlyconstructed, are avoided by the present invention.

ln the accornpanying drawing, Figure 1 is a vertical section, on theline ll, oll l `ig. 2, through a furnace' in whichthe combustion. gasesmove horizontally and alternately in opposite directions, constructed inaccordance withthe present invention; Fig. 2 is a horizontal section onthe line A-A of Fig. 1 Fig. 3 is a vertical section through thefurportion on the line (l-O of said figure; Fig. 4 is a vertical sectionon the line D-D of Fig. 1 Fig. 5 is a vertical section on the line J-Jof Fig. 6, `through 4awreversing furnacev in Fig. 6 is ahorizontal'section on the line lil-i of Fig. 5; Fig.7 is a vertical.sectional view, the left hand portion, thereof being on the line F-F ofFig. 5 and the right hand poi'- t'ion on the lineG-G of said figure Fig.8 is* a vertical section on the line ll--fl of Fig. 5 ;4 Fig. 9 is aview on the line O-U ol' Fig. 1() siniilar to Figs. 1 and 5 through anon-reversing furnace in which the'con'lbustion gases move horizontally;Fig. 10 is a' horizontal section on the line Kr-h of Fig. 9 Fig. 1l is avertical section through ,the furnace, the left hand portion thereofbeing on the line L-L of Fig. 9 and the right hand portion on the lineM---M of Fig. 9; Fig. i2 is a sectional specification of Letters Patent..Patented ocr. 13,' 190e. Application-credence,1905. serial No. 254,168.

view, Orr the line N--N of Fig; c; rig. 13 is a vertical section on jtheline. T-T .of Fig. 14

combustion gases move vertically; Fig. 14 is a horlzontal'sect-ion onthe line P-P ofFig.

. through a non-reversing furnace in which the Y 1.3; Fig. 15 is avertical section the left handI rated by a 'central partition in whichare formed two sets of channels b, c, said-channels extending throughoutthe length of the furnace and having their outer endsv closed bysultable means. VThe channels e communicate with chambers m, z, of tworegenerators, and the `channels b communicate respectively with similarchambers z', in said regenerators. The admission and direction ofmovement of air and gases from the regcnerators and through the furnacechambers and channels t, e, are controlled b v suitablevalves'represented at 1, 2, in'- l1`igs.2 and 6 in the ordinary manner.

The retorts a are preferably arranged 'iny the furnace chambers in themanner illustrated, being grouped in pairs and supported Asubstantiallyhorizontal. feaclr group or pairs are separatedfby adistance of threet`o four centimeters and the groups 1 n the same horizontal `plane,.are

The retolats of separated from each other by a space of thirteen tofourteen centimeters. Such separation of the groups of retortsisnecessary 1n y order that the refractory plates on which the retortsrest maybe properly supported vby refractory` pillars.

The pillars supporting the retorts form a series of. dead spaces betweenthe several groups of retorts, which spaces have heretofore notbeen'em-ployed 1n heating the furnace.

The retorts 'in one horizontalplane aresepf araterl from those above andbelow them by y a distance of fourteen centimeters, which separation isnecessary in order that the retort supl'iortlng projections on -thecentral wall between the furnace chambers may be sufliciently strong tobear the weight placed thereon. This -separatio Jtends to for-m a seriesof dead spaces lietween the different rows or layers of retorts, Thesedead s aces fox-ined in the furnace chambers 41S a ove described, andwhich have heretofore l not been utilized, are,

tion, made effective as t ings connecting the air and gas channels withthe furnace chambers are caused to open into the said chambers throughsaid dead spacesff i t In the furnace illustrated in Figs. 1 to 4 l and9 to 12, the inlet apertures orburners are arranged in the horizontaldead spaces m,

each consisting of two apertures o, w, cornof gas and au which enter thefurnace chamber through any burner will be immediately and intimatelymixed lWithout the employment of an obstacle in the path of suchcurrents lto e ect such miXil In theform of furnaceizllustrated in Figs.5 to 8 and 13 to 16in"whch. the combustion gases move .verticallythrough the furnace, each burneralso inc udes two orices i, y', whichare arranged 1n the vertical ,"dead spaces n 'and communicaterespectively with the iiues or channels e, b. The relative arrangementof the -burner openings fi, j, it will be seen is the same as that ofthe openings c, fw, previously described.

.ln the reversing furnace illustrated in Figs. 1 to 8, it will beunderstood that the gas and air are alternately admitted through theburners adjacent one end of the furnace and withdrawn or escapes throughthe corresponding burner openings adjacent the opposite end of thefurnace. For example, and referring to Fig. 1, if gas is supplied to theregenerator :I: it will enter the furnace chambers through the channelsor flues b and the burner openings o and air will enter said chambersfrom the rcgenerator and' through the Aflues or channels e and-theopenings w. The products of combustion will pass from the furnacechambers through the openings fn, w, at the right -hand side of thefurnace and the flues or channels b, c, into the regenerators z, z. Inthistype of furnace the combustion llames pass horizon.

tally and by properly -adjusting suitable valves the direction. ofmovement of the gases and air may be reversed. That is, the rcgencraters2, z may serve to supply gas and air to the furnace while the chambersw, receive the products of combustion instead of the latter supplyingthe air and gas as before described.

ln the continuous furnace illustrated in Figs. Si to 16 .the gas andairis constantly supplied through the burners and the products ofcombustion pass from the furnace or l escape through orifices /f'andflues c (iu the vertical combustion furnace illust ruled 'in Figs.lil to lo) or byorilices at the extreimthe present invene passages oropen seeehr ties of the furnace in the'horizontal combus'" tion furnaceillustrated in Figs. 9 to 12.

Among the/advantages possessed by a furnaceJ constructed as herembeforedescribed and illustrated in the drawings may be noted that as the gasand air are admitted to the furnace at numerous points and throughoutthe entire height and length ofthe furnace chambers, complete combustionand equable diffusion of heat are effected throughout the entirefurnace. As the combustion takes place in free spaces between theretorts, it is more complete and advantageous than when effected in themanner heretofore commonlyfollowed. i/Vith such afurnace it is possibleto employ combustibles which arelrelatively oor 1n .volatileconstituents, because the ength or extent offlame is reduced to aminimum and also thc maximum amount of space Within the furnace isemployed.

'lhc invention may he embodied in nonintermittent recu eration furnacesfor heating the air as wel as for reversible regenerator furnaces forheating air and gas or only heating air and may also be employed infurnaces which are not provided with regenerators or i'ecuperatois. Itmay also be ern-4 ployod in reversible rcgenerator furnaces in 'whichthe reversal takes place round an imaginary vertical axis of g'vration,or round an imaginary horizontal axis of gyration. lndee( reversal roundan imaginary horizontal axis can only be effected by the means hereindescribed,

By the invention it is possible to construct furnaces of maximum size inwhich there will bc an equable' diversion. of heat throughout the entirelength and height of the furnace and a material economy of laborsumption of fuel'ieffected.

By providing an cquahle temperature throughout the furnace the durationof life of the furnace, as well as the retorts, mufiics,

)ots or cruciblcs containing the material to be treated, is materiallyincreased.

Having thus described the invention what and conis claimed and desiredto be secured by hetn ters-Patent is, 1. A gas furnace having aplurality of retorts therein and having burners arranged in the spacesbetween the retorts, each burner consisting of two orifices which extendlaterally from and respectively communicate at their outer ends with airand gas channels,

the inner ends of said orifices being in alinement in the direction ofi'nove'ment of the gases within the furnace chamber.

2. A gas furnace having a plurality of furnace chambers, rctortsarranged in tiers in said chambers, a central partition separating saidchambers and provided with llues und a tierof' burners opening intoearl! rl unber, euch burner comprising lu'o orifices for the admissionof air and gos, respectively ur ranged one behind the other withrelation lo the direction in which the gases move in the furnace. v

3. A furnace provided with a plurality ofindepeinlent furnacel chamberu,a central partition separating said ehan'ibers, a series of gas channelsin said partition, a series of air channels in said partitions, exhaustchanelsleading lrom Athe l'urnace chambers, and

apertures cenneetinpr nthe furnace chambers' with said channels, saidchambers and channels being arranged and cooperating so that the coursestraversed by the air and gas are constantly the same length and so thatthe course traversed is olI minimum length.

4. ln a ,eas furnace liavinzul independent furnace el'iam'lers eac-hadapted ber to the number ol retorts in said chamber, substantially asand for the purpose described. i

5. In a gas furnace having' a plurality ol independent furnace chamberseach adapted to support a series of retorts, a partition sep-l pluralityol' tosupj'iort a series of retorts a partition separating; two oli Saidchambers and-provided with a plurality ol' interior channels or direte,said ducts *communleating with apertures opening into the' retortchambers between the retorts therein and eorrespolnling in nurnaratingtwo ol said chambers and provided with' a plurality of longitudinallyextending independent air and gas ducts, each eommunieatinpr withaperture-sopening into the retort chambers between the retorts therein,said apertures being arranged in pairs 'and the nummersl ol eaeh pairconinnlnir-nting respectively with an air and gas duet.

1n tesuimony wl'ierobf I have signed my name to this speeil'ieation inthe presence of two subscribing witnesses. y r

LOUIS GEORGES FROWONT.

"itnessefsz ALBERT LECOCQ,

Mlonin, BERGMANS.

